There are mainly three types of insulator used as overhead insulator likewise Pin Insulator Suspension Insulator Str...
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Main Difference between MCB and MCCB
What is MCB? MCB: MCB stands for “Miniature Circuit Breaker”. Rated current under 100 amps. Interrupting rating of under 18,000 am...
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Why Power Plant Capacity Rated in MW and not in MVA?
For the following reasons, a Power plant capacity rating may be expressed in MW instead of MVA. In a Generating station, the prime mov...
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Why Battery rated in Ah (Ampere hour) and not in VA. ?
Battery stores charge in the form of chemical energy and then converts it into electrical energy to utilize for a specific time. The amo...
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Why Motor rated in kW instead of kVA?
We already know that Transformer rating may be expressed in kVA instead of kW as well as Generator and Alternator rated in kVA . De...
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Why Transformer Rating In kVA, Not in KW?
In Simple words, There are two type of losses in a transformer; 1. Copper Losses 2. Iron Losses or Core Losses or Insulation Losses Cop...
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Why Generator & Alternator rated in kVA. Not in kW?
The power √3 VL IL Cos φ delivered by the alternator for the same value of current, depends upon p.f. (Power Factor=Cos φ) of the load. ...
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What is Stepper Motor ? and its Construction.
It is a brushless electromechanical device which converts the train of electric pulses applied at their excitation windings into precise...
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HOW TO MEASURE INSULATION RESISTANCE ?
We define insulation resistance as the ratio of applied direct voltage across an insulation to the corresponding current through it. ...
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HOW BATTERY CHARGED AND DISCHARGED ?
Discharging of Battery In a battery there are two electrodes immersed in an electrolyte. When an external load is connected to thes...
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DETAIL HISTORY OF BATTERY
Batteries can be found in different sizes. A battery may be as small as a shirt button or may be so big in size that a whole room will be ...
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